Ubisoft has won a patent infringement lawsuit levelled at its Uplay digital rights management service.

Digital Reg said that Ubisoft's Uplay service violated a number of its patents, including the regulating, tracking, delivering , securing and encrypting of content using DRM, reports VG247.

The Californian judge ruled in favour of Ubisoft, however, claiming that the company was immune from the suit due to an earlier settlement Digital Reg agreed with Valve.

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A Ubisoft spokesperson said that the company would "aggressively fight patent cases that target the company and its innovations and technologies".

"Ubisoft is committed to defending itself against patent assertion entities - referred to as patent 'trolls' - that assert invalid or inapplicable patents against the company or the industry," the spokesperson added.

A similar suit has been filed against other companies, including Adobe, EA and Zynga.